>>57815267It makes certain Pokemon nigh unkillable if you use it. When Blissey has a 75% chance of dodging attacks it's game over. You've lost. Aerial Ace isn't going to kill it. Aura Sphere isn't going to kill it. You'd have to get several lucky hits in a row to bring it down.
>252+ Atk Dragonite Aerial Ace vs. 4 HP / 252 Def Blissey: 219-258 (33.5 - 39.5%) -- guaranteed 3HKOThat's the strongest Aerial Ace in the game. STAB Aerial Ace coming off of a 134 base Attack stat. And it does only 1/3rd of Blissey's HP. Anyone arguing in favor of evasion is a bad actor and should be eaten alive by a bear.